Error in "rxsnmp.rx" at line 265: Request for .1.3.6.1.2.1.17.4.3.1.1.244.206.70.44.182.153 failed with error 12 (SnmpError)
Scanner version: 3.6.31.0
Version 3.6.31.0, OS:6.1 Service Pack 1
Not inserted because scan did complete with code SnmpError

The curiosity in this error is, we have three identical switches of that kind (HP 1800-24G). Two were scanned successful, but one failed.

Error in "rxmain.rx" at line 252: Request for .1.3.6.1.2.1.1.1.0 failed with status 16 (SnmpError)
Scanner version: 3.6.31.0
Version 3.6.31.0, OS:6.1 Service Pack 1
Not inserted because scan did complete with code SnmpError

SNMP sometimes returning error 12 (SNMP_ERRORSTATUS_INCONSISTENTVALUE) is a known issue with HP switches.
Usually it goes away after rebooting the switch but may come back after some time.
We have reports that a firmware update helps.